Number sense skills provide the foundation for the acquisition of higher order mathematical skills and concepts. However, there is disagreement over the definition of number sense, the specific skills that make up the construct, and the psychometric properties of measures used to assess these skills. In the current study, 10 brief tasks…

This study used simulation techniques to evaluate the technical adequacy of three methods for the identification of specific learning disabilities via patterns of strengths and weaknesses in cognitive processing. Latent and observed data were generated and the decision-making process of each method was applied to assess concordance in…

The Dynamic Indicators of Basic Early Literacy Skills (DIBELS) are brief measures of early literacy skills for students in Grades K-6 (University of Oregon, 2009; see Kaminski & Good, 1996). School psychologists and other educational professionals use DIBELS to identify students who are in need of early intervention. The purpose of this review was…

The purpose of this study was to examine the technical (psychometric) adequacy of office discipline referrals (ODRs) as a behavioral assessment tool for individual student, data-based decision making within a problem-solving model. Participants were 990,908 students in 2,509 elementary schools. Students were grouped into ODR cut points of 0-1,…

Consultation researchers have long recognized the importance of assessing fidelity of intervention implementation, including the fidelity with which both consultation procedures and behavioral intervention plans are delivered. However, despite decades of discussion about the importance of assessing for fidelity of implementation in intervention…

Treatment integrity (also referred to as "treatment fidelity," "intervention integrity," and "procedural reliability") is an important methodological concerning both research and practice because treatment integrity data are essential to making valid conclusions regarding treatment outcomes. Despite its relationship to validity, treatment…

This special series focused on treatment integrity in the child mental health and education field is timely. The articles do a laudable job of reviewing (a) the current status of treatment integrity research and measurement, (b) existing conceptual models of treatment integrity, and (c) the limitations of prior research. Overall, this thoughtful…

Direct observation plays an important role in the assessment practices of school psychologists and in the development of evidence-based practices in general and special education. The defining psychometric features of direct observation are presented, the contributions to assessment practice reviewed, and a specific proposal is offered for…

Documenting treatment integrity is an important issue in research and practice in any discipline concerned with prevention and intervention. However, consensus concerning the dimensions of treatment integrity and how they should be measured has yet to emerge. Advances from three areas in which significant treatment integrity work has taken…

The concept of treatment integrity cuts across a diversity of fields involved with providing treatments or interventions to individuals. In medical treatments, the concept of "treatment compliance" or "treatment adherence" is an important and problematic issue. In the field of nutrition, the concept of "dietary adherence" is important for…

This article introduces a mini-series on research methods in school psychology. A conceptual overview of research methods is presented, emphasizing the degree to which each method allows the inference that treatment affects outcome. Experimental and nonexperimental, psychometric, descriptive, and meta-analysis research methods are outlined. (SLD)